Chambered nautilus

Description:	Think of an octopus or a squid that lives in a large, round shell and then youll understand what a Chambered Nautilus is like. This creature has the ability to take water into a sac in its body, and then expel this water quickly, creating a cool method of propulsion. By using this type of movement the Chambered Nautilus moves shell-first through the water. So this undersea animal never actually sees where its going, only the places where its been. This shell has been polished to remove the outer layer of the shell to show the pearly inside layers.
Source:	http://www.digitalindy.org/cdm/ref/collection/tcm/id/1417
Collection:	The Children's Museum of Indianapolis
Rights:	https://creativecommons.org/licenses/by-sa/3.0/;
Copyright:	Creative Commons (CC By-SA 3.0);
Subjects:	Shells Nautilus Marine animals Shellfish Mollusks

Further information on this record can be found at its source.